<style> input:checked { height: 50px; width: 50px;} </style> <form action=""> <input type="radio" checked="checked" value="Man" name="radio"> Man<br> <input type="radio" value="Woman" name="radio"> Woman<br> <input type="checkbox" checked="checked" value="lucky"> I Am Lucky<br> <input type="checkbox" value="strong"> I Am Strong </form>